陆东凹陷九佛堂组储层岩石学及成岩作用

通过岩石学、Ｘ－衍射、扫描电镜、电子探针和同位素等分析手段，对陆东凹陷九佛堂组储层特征进行了分析，确定了自生矿物的类型及特征，提出了九佛堂组储层的储集空间以次生孔隙为主，并对次生孔隙的形成机制进行了讨论。通过岩石学分析，确定了各储层中成岩作用序列，采用负胶结构孔隙度的概念，研究各类储层中成岩作用与孔隙演化的关系。据岩石物性和压汞分析，对风暴砂体和扇三角洲砂体的储层性质进行了评价和分析。

Reservoir Petrology and Diagenesis of Jiufetang Formation, Ludong Depression

By analytical means of petrography , cathodoluminescence, X-ray diffraction, SEM, electron probe and stable isotope etc. the reservoir diagnenetic features are analysed. The types and characteristics of diagnetic minerals are determined . The paper points out that the reservoir porosty is mainly secondary in origin. The forming mechanism of the secondary porosities is discussed. Through petrological analysis. the sequence of diagnesis in the reservoir is determined.By adopting the consumption of minus-cement porosity, the relation between porosity evolution and diagenesis is studied. The analyses of petrophysics and capillary pressure are used for reservoir evaluation and analysis.